Add Yahoo as a preferred source to see more of our stories on Google. A western pine beetle rests on a sap mound on a pine tree. - Charles Wollertz/Getty Images A thriving pine tree is a thing of ...

Sometimes a tree will look great for a few years and then, due to crowding from surrounding shrubs or other trees, start to defoliate or flower less abundantly due to reduced light exposure.

A: Your pine is showing early stages of Fusiform rust, a fungal disease. As the spots grow larger and swell, which they will, ...

As he waits with his daughter for the school bus, Tom Langmead can hear the pine bark beetles munching on pine trees at High Oaks Park. “You can actually hear them as you're standing at the bus stop – ...

If you bought a live pine tree for Christmas, you may be thinking about planting it in your yard. Here in Tucson we are in Sunset Zone 12. Most pine trees that do well in our desert are imports from ...

Do you know what the state tree of North Carolina is? If you said the pine tree, you are correct. In 1963 the pine tree was designated the state tree of North Carolina, but did you know it goes ...

It still drew a crowd Saturday afternoon, even though most of its canopy blew off at the beginning of July. The red pine tree in Itasca State Park, Minn., still stands, but is missing much of its top ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

To get involved with the Sugar Pine Foundation, mark your calendar with the following dates and locations. Please dress in layers and bring a full water bottle. Shovels, gloves and seedlings will be ...

Reporting from San Luis Obispo — Like a lot of trees on the Cal Poly campus here, the Cook pine was tall and beautiful but not especially remarkable. At least not at first glance. For the record: 2:40 ...